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Statements

Subject Item
n2:RIV%2F68378271%3A_____%2F13%3A00395294%21RIV14-GA0-68378271
rdf:type
n12:Vysledek skos:Concept
dcterms:description
The results of ion channeling studies of lattice distortions in SrTiO3: Cr single crystals are presented. Two types of single crystals containing the same amount of Cr impurities but differing in stoichiometry have been investigated. The single crystals grown by the Verneuil method have the compositions of standard-grown SrTiO3: Cr (0.05 at % Cr), whereas the single crystals grown with a strontium deficiency and a chromium compensating amount have the composition Sr0.9995TiO3 (0.05 at % Cr). Analysis of the angular channeling spectra indicates that, in crystals of both types, the main defects are Cr impurities located in octahedral sites. In the SrTiO3: Cr crystals, impurity atoms manifest themselves as Cr4+ with tetragonal Jahn-Teller distortions of the surrounding lattice. In the Sr0.9995TiO3: Cr crystals grown with a Sr deficiency, the characteristic displacements of Ti ions in the third coordination sphere of the Jahn-Teller center Cr4+ exhibit the effect of interaction of the center with a neighboring vacancy in the Sr sublattice. The results of ion channeling studies of lattice distortions in SrTiO3: Cr single crystals are presented. Two types of single crystals containing the same amount of Cr impurities but differing in stoichiometry have been investigated. The single crystals grown by the Verneuil method have the compositions of standard-grown SrTiO3: Cr (0.05 at % Cr), whereas the single crystals grown with a strontium deficiency and a chromium compensating amount have the composition Sr0.9995TiO3 (0.05 at % Cr). Analysis of the angular channeling spectra indicates that, in crystals of both types, the main defects are Cr impurities located in octahedral sites. In the SrTiO3: Cr crystals, impurity atoms manifest themselves as Cr4+ with tetragonal Jahn-Teller distortions of the surrounding lattice. In the Sr0.9995TiO3: Cr crystals grown with a Sr deficiency, the characteristic displacements of Ti ions in the third coordination sphere of the Jahn-Teller center Cr4+ exhibit the effect of interaction of the center with a neighboring vacancy in the Sr sublattice.
dcterms:title
Ion channeling study of lattice distortions in chromium-doped SrTiO3 crystals Ion channeling study of lattice distortions in chromium-doped SrTiO3 crystals
skos:prefLabel
Ion channeling study of lattice distortions in chromium-doped SrTiO3 crystals Ion channeling study of lattice distortions in chromium-doped SrTiO3 crystals
skos:notation
RIV/68378271:_____/13:00395294!RIV14-GA0-68378271
n12:predkladatel
n14:ico%3A68378271
n3:aktivita
n11:I n11:P
n3:aktivity
I, P(GAP107/11/1856), P(GAP108/12/1941), P(GBP108/12/G108)
n3:cisloPeriodika
7
n3:dodaniDat
n7:2014
n3:domaciTvurceVysledku
n13:5193222 n13:7247109 Dejneka, Alexandr
n3:druhVysledku
n16:J
n3:duvernostUdaju
n18:S
n3:entitaPredkladatele
n4:predkladatel
n3:idSjednocenehoVysledku
81187
n3:idVysledku
RIV/68378271:_____/13:00395294
n3:jazykVysledku
n8:eng
n3:klicovaSlova
ion channeling; lattice distortions; SrTiO3
n3:klicoveSlovo
n10:ion%20channeling n10:SrTiO3 n10:lattice%20distortions
n3:kodStatuVydavatele
RU - Ruská federace
n3:kontrolniKodProRIV
[0A01224BCC01]
n3:nazevZdroje
Physics of the Solid State
n3:obor
n17:BM
n3:pocetDomacichTvurcuVysledku
3
n3:pocetTvurcuVysledku
5
n3:projekt
n15:GAP108%2F12%2F1941 n15:GAP107%2F11%2F1856 n15:GBP108%2F12%2FG108
n3:rokUplatneniVysledku
n7:2013
n3:svazekPeriodika
55
n3:tvurceVysledku
Lavrentiev, Vasyl Trepakov, Vladimír Jastrabík, Lubomír Vacík, Jiří Dejneka, Alexandr
n3:wos
000321632800013
s:issn
1063-7834
s:numberOfPages
7
n19:doi
10.1134/S1063783413070202